1. Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
2. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
3. School of Environment, Northeast Normal University, Changchun 130024, China
4. Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
5. Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), Houston, Texas 77005, United States